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This platform is brought to you by the intergeo project, funded under the eContent Plus programme of the European commission and by partners

Inscribe Circles in Triangles using Geometric Construction (slide show)

Inscribe circles in triangles using geometric construction, with PC geometry software such as Geogebra, or Dr Geo on Linux. This slide show presents some innovative constructions. The slide show and included constructions are public domain. Basic use of compass and straightedge to draw geometric constructions is advised as a prerequisite topic. This topic should encourage you to take a fresh look at familiar shapes, to ask questions, to do experiments with geometry and mathematics, and to prove your results. The geometry files are also on

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